Net Loss Per Share (Tables)

3 Months Ended

Mar. 31, 2013

Calculation of Net Income (Loss) and Number of Shares Used to Compute Basic and Diluted Earnings Per Share

The calculation of net loss and the number of shares used to compute basic and diluted earnings per share for the three-month periods ended March 31, 2013 and 2012 are as follows:

	Three Months Ended March 31,
In thousands, except per share data	2013			2012
Net loss	$	(64,670	)	$	(55,894	)
Net loss per share – basic and diluted	$	(0.36	)	$	(0.35	)
Weighted average shares outstanding – basic and diluted		178,541			160,970

Potentially Dilutive Securities Excluded in Computation of Net Income (Loss) Per Share

For the three-month periods ended March 31, 2013 and 2012, the following potentially dilutive securities were not included in the computation of net loss per share because the effect would be anti-dilutive:

	Three Months Ended March  31,
In thousands	2013		2012
Stock options		8,684		8,126
Restricted stock and restricted stock units		1,930		2,259
		10,614		10,385